Showing 1 - 10 of 37
This paper studies test of hypotheses for the slope parameter in a linear time trend panel data model with serially correlated error component disturbances. We propose a test statistic that uses a bias corrected estimator of the serial correlation parameter. The proposed test statistic which is...
Persistent link: https://www.econbiz.de/10010892358
In this paper we investigate the problem of detecting a change in the drift parameters of a generalized Ornstein–Uhlenbeck process which is defined as the solution of <Equation ID="Equ23"> <EquationSource Format="TEX">$$\begin{aligned} dX_t=(L(t)-\alpha X_t) dt + \sigma dB_t \end{aligned}$$</EquationSource> <EquationSource Format="MATHML"> <math xmlns:xlink="http://www.w3.org/1999/xlink" display="block"> <mrow> <mtable columnspacing="0.5ex"> <mtr> <mtd columnalign="right"> <mrow> <mi>d</mi> <msub> <mi>X</mi> <mi>t</mi> </msub> <mo>=</mo> <mrow> <mo stretchy="false">(</mo> <mi>L</mi> <mrow> <mo stretchy="false">(</mo> <mi>t</mi> <mo stretchy="false">)</mo> </mrow> <mo>-</mo> <mi mathvariant="italic">α</mi> <msub> <mi>X</mi> <mi>t</mi> </msub> <mo stretchy="false">)</mo> </mrow> <mi>d</mi> <mi>t</mi> <mo>+</mo> <mi mathvariant="italic">σ</mi>...</mrow></mtd></mtr></mtable></mrow></math></equationsource></equationsource></equation>
Persistent link: https://www.econbiz.de/10010992900
The purpose of this study was to assess changes in streamflow in the Upper Rio Grande (URG) basin, as it exits the San Luis Valley (SLV) at the Lobatos gauge station, in relation to changes in local environmental drivers. Irrigation-dependent agriculture accounts for more than 85% of surface and...
Persistent link: https://www.econbiz.de/10010997532
Owing to the increasing anthropogenic activities, flood frequency analysis and flood control scheduling of reservoir become more and more complicated because of the non-stationarity of flood series. This paper aims to assess the effects that non-stationary flood series, which is affected by land...
Persistent link: https://www.econbiz.de/10010997652
Maintaining a stable score scale over time is critical for all standardized educational assessments. Traditional quality control tools and approaches for assessing scale drift either require special equating designs, or may be too time-consuming to be considered on a regular basis with an...
Persistent link: https://www.econbiz.de/10010848137
In this paper we consider the problem of determining the number of structural changes in multiple linear regression models via group fused Lasso (least absolute shrinkage and selection operator ). We show that with probability tending to one our method can correctly determine the unknown number...
Persistent link: https://www.econbiz.de/10010887083
Simple and intuitive non-parametric methods are provided for estimating variance change points for time series data. Only slight alterations to existing open-source computer code applying CUSUM methods for estimating breakpoints are required to apply our proposed techniques. Our approach,...
Persistent link: https://www.econbiz.de/10010904196
This paper develops Bayes pre-test estimate (BPE) of the change point of a sequence of independent random variables under asymmetric linex loss function. BPE of the change point is obtained for changing regular one-parameter exponential family model. Its sensitivity is examined to the choice of...
Persistent link: https://www.econbiz.de/10011000662
This paper studies the estimation of change point in panel models. We extend Bai (2010) and Feng, Kao and Lazarová (2009) to the case of stationary or nonstationary regressors and error term, and whether the change point is present or not. We prove consistency and derive the asymptotic...
Persistent link: https://www.econbiz.de/10011269093
Persistent link: https://www.econbiz.de/10005375774